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<html lang="en" xmlns:th="http://www.thymeleaf.org">
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    <meta name="author" content="ThemeBucket">
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    <title>赌狗的世界你不懂</title>

    <link href="https://ershoumall.oss-cn-beijing.aliyuncs.com/zhuanpan.css" rel="stylesheet" type="text/css">


</head>
<body style="background:#e62d2d;overflow-x:hidden;">
<button onclick="toIndex()" class="btn btn-success" id="emp_add_modal_btn2"
        style="margin: 1rem;height: 3rem;width:15rem;margin-bottom: 1px;float: right">回到主页
</button>
<span style="font-size: 15px;color: white;margin: 30px">该模块正在开发中...正在策划中奖概率与单次抽奖金额</span>
<hr>
<br>
<!-- 代码 开始 -->
<img src="https://ershoumall.oss-cn-beijing.aliyuncs.com/1.png
" id="shan-img" style="display:none;width: 50%;height: 50%"/>
<img src="https://ershoumall.oss-cn-beijing.aliyuncs.com/2.png" id="sorry-img"
     style="display:none;width: 50%;height: 50%"/>
<div class="banner">
    <div class="turnplate"
         style="background-image:url(https://ershoumall.oss-cn-beijing.aliyuncs.com/turnplate-bg.png);background-size:50% 50%;;width: 50%;height: 50%">
        <canvas class="item" id="wheelcanvas" width="422px" height="422px"></canvas>
        <img class="pointer" src="https://ershoumall.oss-cn-beijing.aliyuncs.com/turnplate-pointer.png"/>
    </div>
</div>
<!-- 代码 结束 -->
</body>

<script type="text/javascript" src="https://ershoumall.oss-cn-beijing.aliyuncs.com/jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="https://ershoumall.oss-cn-beijing.aliyuncs.com/awardRotate.js"></script>

<script type="text/javascript">
    var turnplate = {
        restaraunts: [],				//大转盘奖品名称
        colors: [],					//大转盘奖品区块对应背景颜色
        outsideRadius: 192,			//大转盘外圆的半径
        textRadius: 155,				//大转盘奖品位置距离圆心的距离
        insideRadius: 68,			//大转盘内圆的半径
        startAngle: 0,				//开始角度

        bRotate: false				//false:停止;ture:旋转
    };

    $(document).ready(function () {
        //动态添加大转盘的奖品与奖品区域背景颜色
        turnplate.restaraunts = ["一套化妆品", "一次见面", "谢谢参与", "一个包包", "5元现金", "50元罚款", "一次签到打卡 ", "一部苹果15pro", "一次原谅卡", "100元现金"];
        turnplate.colors = ["#FFF4D6", "#FFFFFF", "#FFF4D6", "#FFFFFF", "#FFF4D6", "#FFFFFF", "#FFF4D6", "#FFFFFF", "#FFF4D6", "#FFFFFF"];


        var rotateTimeOut = function () {
            $('#wheelcanvas').rotate({
                angle: 0,
                animateTo: 2160,
                duration: 8000,
                callback: function () {
                    alert('网络超时，请检查您的网络设置！');
                }
            });
        };

        //旋转转盘 item:奖品位置; txt：提示语;
        var rotateFn = function (item, txt) {
            var angles = item * (360 / turnplate.restaraunts.length) - (360 / (turnplate.restaraunts.length * 2));
            if (angles < 270) {
                angles = 270 - angles;
            } else {
                angles = 360 - angles + 270;
            }
            $('#wheelcanvas').stopRotate();
            $('#wheelcanvas').rotate({
                angle: 0,
                animateTo: angles + 1800,
                duration: 8000,
                callback: function () {
                    alert(txt);
                    turnplate.bRotate = !turnplate.bRotate;
                }
            });
        };

        $('.pointer').click(function () {
            if (turnplate.bRotate) return;
            turnplate.bRotate = !turnplate.bRotate;
            //获取随机数(奖品个数范围内)
            var item = rnd(1, turnplate.restaraunts.length);
            //奖品数量等于10,指针落在对应奖品区域的中心角度[252, 216, 180, 144, 108, 72, 36, 360, 324, 288]
            rotateFn(item, turnplate.restaraunts[item - 1]);
            /* switch (item) {
                case 1:
                    rotateFn(252, turnplate.restaraunts[0]);
                    break;
                case 2:
                    rotateFn(216, turnplate.restaraunts[1]);
                    break;
                case 3:
                    rotateFn(180, turnplate.restaraunts[2]);
                    break;
                case 4:
                    rotateFn(144, turnplate.restaraunts[3]);
                    break;
                case 5:
                    rotateFn(108, turnplate.restaraunts[4]);
                    break;
                case 6:
                    rotateFn(72, turnplate.restaraunts[5]);
                    break;
                case 7:
                    rotateFn(36, turnplate.restaraunts[6]);
                    break;
                case 8:
                    rotateFn(360, turnplate.restaraunts[7]);
                    break;
                case 9:
                    rotateFn(324, turnplate.restaraunts[8]);
                    break;
                case 10:
                    rotateFn(288, turnplate.restaraunts[9]);
                    break;
            } */
            console.log(item);
        });
    });

    function rnd(n, m) {
        var random = Math.floor(Math.random() * (m - n + 1) + n);
        return random;

    }


    //页面所有元素加载完毕后执行drawRouletteWheel()方法对转盘进行渲染
    window.onload = function () {
        drawRouletteWheel();
    };

    function drawRouletteWheel() {
        var canvas = document.getElementById("wheelcanvas");
        if (canvas.getContext) {
            //根据奖品个数计算圆周角度
            var arc = Math.PI / (turnplate.restaraunts.length / 2);
            var ctx = canvas.getContext("2d");
            //在给定矩形内清空一个矩形
            ctx.clearRect(0, 0, 422, 422);
            //strokeStyle 属性设置或返回用于笔触的颜色、渐变或模式
            ctx.strokeStyle = "#FFBE04";
            //font 属性设置或返回画布上文本内容的当前字体属性
            ctx.font = '16px Microsoft YaHei';
            for (var i = 0; i < turnplate.restaraunts.length; i++) {
                var angle = turnplate.startAngle + i * arc;
                ctx.fillStyle = turnplate.colors[i];
                ctx.beginPath();
                //arc(x,y,r,起始角,结束角,绘制方向) 方法创建弧/曲线（用于创建圆或部分圆）
                ctx.arc(211, 211, turnplate.outsideRadius, angle, angle + arc, false);
                ctx.arc(211, 211, turnplate.insideRadius, angle + arc, angle, true);
                ctx.stroke();
                ctx.fill();
                //锁画布(为了保存之前的画布状态)
                ctx.save();

                //----绘制奖品开始----
                ctx.fillStyle = "#E5302F";
                var text = turnplate.restaraunts[i];
                var line_height = 17;
                //translate方法重新映射画布上的 (0,0) 位置
                ctx.translate(211 + Math.cos(angle + arc / 2) * turnplate.textRadius, 211 + Math.sin(angle + arc / 2) * turnplate.textRadius);

                //rotate方法旋转当前的绘图
                ctx.rotate(angle + arc / 2 + Math.PI / 2);

                /** 下面代码根据奖品类型、奖品名称长度渲染不同效果，如字体、颜色、图片效果。(具体根据实际情况改变) **/
                if (text.indexOf("M") > 0) {//流量包
                    var texts = text.split("M");
                    for (var j = 0; j < texts.length; j++) {
                        ctx.font = j == 0 ? 'bold 20px Microsoft YaHei' : '16px Microsoft YaHei';
                        if (j == 0) {
                            ctx.fillText(texts[j] + "M", -ctx.measureText(texts[j] + "M").width / 2, j * line_height);
                        } else {
                            ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                        }
                    }
                } else if (text.indexOf("M") == -1 && text.length > 6) {//奖品名称长度超过一定范围
                    text = text.substring(0, 6) + "||" + text.substring(6);
                    var texts = text.split("||");
                    for (var j = 0; j < texts.length; j++) {
                        ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                    }
                } else {
                    //在画布上绘制填色的文本。文本的默认颜色是黑色
                    //measureText()方法返回包含一个对象，该对象包含以像素计的指定字体宽度
                    ctx.fillText(text, -ctx.measureText(text).width / 2, 0);
                }

                //添加对应图标
                if (text.indexOf("闪币") > 0) {
                    var img = document.getElementById("shan-img");
                    img.onload = function () {
                        ctx.drawImage(img, -15, 10);
                    };
                    ctx.drawImage(img, -15, 10);
                } else if (text.indexOf("谢谢参与") >= 0) {
                    var img = document.getElementById("sorry-img");
                    img.onload = function () {
                        ctx.drawImage(img, -15, 10);
                    };
                    ctx.drawImage(img, -15, 10);
                }
                //把当前画布返回（调整）到上一个save()状态之前
                ctx.restore();
                //----绘制奖品结束----
            }
        }
    }
    function toIndex() {
        window.open('http://118.31.60.43/flushPageToFlushPunch', '_blank');

    }

</script>
</html>